Home / 21,728.28-32,568.39-14,222.82

Finding the Fourth Proportional to 21,728.28, 32,568.39 and 14,222.82

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Solution

The fourth proportional to 21,728.28, 32,568.39 and 14,222.82 is: 21,318.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,728.28 : 32,568.39 = 14,222.82 : x
  2. Step 2: Convert to fraction form
    21,728.28/32,568.39 = 14,222.82/x
  3. Step 3: Cross multiply
    21,728.28x = 32,568.39 × 14,222.82
  4. Step 4: Simplify right side
    21,728.28x = 463,214,348.66
  5. Step 5: Solve for x
    x = 463,214,348.66/21,728.28
  6. Step 6: Final answer
    x = 21,318.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.